Quote:
Originally Posted by bhtooefr
Volkswagen does it from the factory on the EA288 diesels...
Of course, it's Volkswagen, with all of the reliability implications that come from them... and the EA288s haven't been around long enough to know how that actually works reliability-wise in the real world. (And, in the US market, they had barely launched before their cheating was made public.)
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VW has used these features a long time in most of their engines. For example their most popular gasoline engines EA211 and EA888 3. generation have been very reliable. Their latest versios have some new features but here is VW's old tried and tested system explained:
https://s3-eu-west-1.amazonaws.com/m...are/18TFSI.pdf
Multi-circuit cooling system nothing unusual these days. It gives shorter engine warm up phase and speeds up passenger compartment heating. That is something everybody wants. Here are two examples:
Ford Fiesta
Green Car Congress: Peugeot 2008 crossover delivers CO2 emissions as low as 99g/km for gasoline, 98 g/km for diesel